This is a really good looking skin Diver watch that stands out nicely on the wrist.

The dial has a black center with a nice outer circle of red below the hour batons. It's then finished with another black band on the outer section of the dial.

The sweeping second hand has a hammerhead design with orange tip for ease of reading.

The outer bezel rotates in both directions and is in great condition for its age.  The rd bezel is marked in the usual way for Divers watches with 20 minutes for the oxygen tank marked out.  

The watch runs well and is in good condition for its 40 plus years.